Self-driven device for automatically untwisting yarn to remove the kinks therefrom



Nov. 29, 1927. 1,650,901

J O. MCKEAN SELF DRIVEN DEVICE FOR AUTOMATICALLY UNTWISTING YARN TO REMOVE THE! KINKS THEREFROM Filed Nov. 11, 1925 2 Sheets-Sheet l INVENTOR ATTORN EYS YARN TO Nov. 29, 1927.

O. M' KEAN AUTOMATI 2 Sheets-Sheet 2 SALLY UNTWISTING REMOVE THE KINKS THEREFROH Filed NOV. 11, 1925 SELF DRIVEN DEVICE FOR ATTORNEYS lhlovi 2d, 127.

a l r JGHN O. lftEcKT-Mlll, OF WESTFIELD, MASSACHUSETTS, A$SIGNOB TO 'EQfiTER Il'XACI-IINE GUMPANY, OE WESTFIELD, IiIASSAGHUSETTS, A GORPORA'IION 0F MASSACHUSETTS.

SELF-DRIVEN nnvrcn non AUTOMATICALLY un'rwrsrrne YAnn'ro REMOVE THE KINKS THEREFROM.

Application filed November supply to the warping machine. 'iecially true when the warping machine and the yarn is at rest. 7 e object or" my invention is to provide a self-driven device arranged to exert a untwisting rolling action on the yarn as it passes therethrough to automatically untwist and remove the kink said device in the present instance comprising a verticalsupport and a pair of coacting plates o'l conable diameters carried thereby, the

low er plate being fixed to said support anl 15 the upper plate being gravity operated and rotatable upon the lower plate, the yarn in passage between the plates serving to rotate said plates at di'll'erent angular speeds to exert the uutwisting rolling action on the yarn.

The above untwisting device is preferably ed in connection with a compensating de- -.ce which operates to keep the yarn comparatively taut whether the yarn is running t, thereby tending to keep the kinks 11 forming in the yarn especially when the yarn is at rest. 1

A practical embodiment of my invention represented in the accompanying drawin which 1 represents a detail side view ot a th my self-driven devices for autormtwisting the yarn included 2 represents a section taken in the .rne oi? the line H-H of Fig. 1, looking in the direction of the arrows.

Fig. 3 represents a detail section on an enlarged scale showing a cop, the compensating device and the un'twisting device.

Fig. 4 represents a. detail horizontal section taken in the plane of the line IV IV of Fig. 3, looking in the direction of the arrows.

The creel frame is denoted by 1. The cops 2 are arranged in a plurality of vertical rows, the holders 3 for the cops of each vertical row being carried by a vertically disposed supporting bar t pivoted in the creel frame 1 to rock on a vertical axis to swing the cops to and from their doiling posit-ion.

In proximity to each vertical supporting bar i I mount a vertically disposed rod 5,

This

Serial No. 68,365.

around which red the yarns are wound as they pass from their cops to the warping machine (not shown herein). 1 have found that by winding the yarn around the bar 5 as it leaves the cop, the bar operates to keep the yarn comparatively. taut whether the yarn or is not running, thereby tending to take the kinks out of the yarn when the yarn is running and also to keep the kinks from forming when the yarn is at rest.

The self-driven device for automatically untwisting the kinks from the yarn by a rolling action thereon as itpasses through the device comprises a vertically disposed bar 6, rotatably mounted in the creel frame 1 adjacent to the vertically disposed yarn con'ipensating rod 5, and a pair of upper and lower coacting plates 7 and 8 of considerable diameters. The lower plate 8 is secured in its proper position on the bar 6 by the set screw 9 and the upper plate 7 rests by gravity on the lower plate 8 and is freely rotatable thereon, which upper plate may he provided with one or more weights .10, if so desired.

In operation :'\"Vhen the yarn is running it will rotate the upper and lower plates at different angular speeds, the upper plate being rotated at a higher angular speed than the lower plate, thus exerting an untwistin rolling action on the yarn which autoinath cally untwists the kinl" therefrom.

By making the plates T and 8 of considerable diameters, I are enabled to obtain a very high surface speed at the periphery oi the upper plate, the lower plate being rotated much slower because it is secured to the bar 6, thus exerting an extended untwisting action on the yarn and also tending to throw foreign matter outwardly away from between the plates, it being understood that vices tend to bite the yarn and to run the twist back and form kinks therein. In practice I have found that by making the plates of my kink removing device about four inches in diameter as compared to the one and one-half inch diameter of the ushers of the tension devices of the art. I am enabled to obtain extended contact with the yarn and an untwisting rolling action thereon sullicient to remove the kinks therefrom.

What I claim is 1. A yarn supply cop and a device driven by the yarn as it passes therethrough, said device comprising a pair of coacting rotatable plates having an extended contact with the yarn and operable to remove the kinks therefrom by an extended untwisting rolling action thereon, said plates having diameters greater than one-half the length of the cop from which the yarn is being drawn.

2. A yarn supply cop and a device driven by the yarn as it passes thcrethrough, said device comprising a pair of coacting rotatable plates having an extended contact with the yarn and operable to remove the kinks therefrom by an extended untwisting rolling action thereon, said plates having diameters greater than onehalf the length of the cop from which the warn is being drawn. and a yarn compensating device engaging the yarn as it passes from the yarn supply to the kink removing" device, operating to keep the yarn comparatively taut when the yarn is running and at rest.

A yarn supply cop and a device driven by the yarn as it passes therethrough, said device comprising a rotatable mounted vertical support and a pair of coacting rotatable plates carried thereby having an extended contact with the yarn and operable to remove the kinks therefrom by an extended unt-wisting rolling action thereon, said plates having diameters greater than one-half the length of the cop from which the yarn is being drawn, the lower plate being fixed to said support and the upper plate being gravity operated.

-l-. A yarn supply cop and a device driven by the yarn as it passes therethrough, said device comprising a rotatably mounted vertical support and a pair of coacting rotatable plates carried thereby having an extended contact with the yarn and operable to remove the kinks therefrom by an extended untwisting rolling action thereon, said plates having diameters greater than onehalf the length of the cop from which the yarn is being drawn, the lower plate being fixed to said support and the upper plate being gravity operated, and a yarn compensating device engaging the yarn as it passes from the yarn supply to the kink removing device, operating to keep the yarn comparatively taut when the yarn is running and at rest.

A plurality of yarn supply cops and a plurality of devices driven by the yarns as they pass theretln'ough, said devices comprising a common rotatably mounted vertical support and a plurality of pairs of coact ing rotatable plates carried thereby having an extended contact with the yarn and operable to remove the kinks therefrom by an extended untwisting rolling action thereon, said plates having diameters greater than one-half the length of the cops from which the yarn is being drawn, the lower plate of each pair being fixed to said support and the upper plate of each pair being gravity operated.

6. A plurality of yarn supply cops and a plurality of devices driven by the yarns as they pass therethrough, said devices comprising a common rotatably mounted vertical support and a plurality of pairs of coacting rotatable plates carried thereby having an extended contact with the yarn and operable to remove the kinks therefrom by an extended untwisting rolling action thereon, said plates having diameters greater than one-half the length of the cops from which the yarn is being drawn, the lower plate of each pair being fixed to said support and the upper plate of each pair being gravity operated, and a common yarn compensating device engaging the yarns as they pass from the yarn supplies to their kink removing devices, operating to keep the yarns comparatively taut when the yarns are running and at rest.

In testin'iony, that I claim the foregoing as my invention, I have signed my name this 9th day of Nov. 1925.

JOHN O. MCKEAN. 

